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Finding the Fourth Proportional to 7,915.36, 10,973.14 and 7,494.02

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Solution

The fourth proportional to 7,915.36, 10,973.14 and 7,494.02 is: 10,389.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.36 : 10,973.14 = 7,494.02 : x
  2. Step 2: Convert to fraction form
    7,915.36/10,973.14 = 7,494.02/x
  3. Step 3: Cross multiply
    7,915.36x = 10,973.14 × 7,494.02
  4. Step 4: Simplify right side
    7,915.36x = 82,232,930.62
  5. Step 5: Solve for x
    x = 82,232,930.62/7,915.36
  6. Step 6: Final answer
    x = 10,389.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.